Using Technology to Address Old Problems in New Ways." Communications of the ACM 41, no. 8 (1998): 11-18. "
Infanterist der Zukunft. Deutsches Heeresamt, 2012.
Rheinmetall and SAAB: Creating Network-Enabled Warfighters. Rheinmetall Defense, 2012.
Sharable Content Object Reference Model (SCORM) 2004, 4th Edition Run-Time Environment (RTE), Version 1.1 In 4th Edition Run-Time Environment (RTE), Version 1.1 . Alexandria, VA: ADL Initiative, 2004.
Accessibility and Mobile Learning Standardization, Introducing Some Ideas About the Device Profile (DP). Second International Conference on Systems (ICONS’07), 2007.
MobiLearn: An Open Approach for Structuring Content for Mobile Learning Environments." In Web Information Systems, 114-24. Berlin, Heidelberg: Springer Verlag, 2004. "
Mobile Learning: Current Trend and Future Challenges. Fifth IEEE International Conference on Advanced Learning Technologies (ICALT’05), 2005.
Design and Implementation of a Mobile Learning Environment as an Extension of SCORM 2004 Specifications. Seventh IEEE International Conference on Advanced Learning Technologies (ICALT 2007), 2007.
Mobile Learning Shareable Content Object Reference Model (m-SCORM) Limitations and Challenges [N09-35]. Cambridge, U.K., 2010.
A Theory of Learning for the Mobile Age." In The Sage Handbook of E-learning Research , 221-47. London: Sage Publications, 2007. "
Ten Tips for Mobile UX. Red Ant Blog, 2013.
Integrated Micro Learning – An Outline of the Basic Method and First Results." In International Conference on Interactive Computer Aided Learning (ICL). Villach, Austria, 2004. "
Feedback and Self-Regulated Learning: A Theoretical Synthesis." Review of Educational Research 65, no. 3 (1995): 254-81. "
Learner Know Thyself: Student Models to Give Learner Control and Responsibility." In Control and Responsibility: International Conference on Computers in Education, 17-24. AACE, 1997. "
Smart Indicators on Learning Interactions." In Creating New Learning Experiences on a Global Scale: LNCS 4753. Second European Conference on Technology Enhanced Learning (EC-TEL 2007), 56-70. Berlin, Heidelberg: Springer Verlag, 2007. "
Personalisation of Learning in Virtual Learning Environments." In Learning in the Synergy of Multiple Disciplines, 52-66. Berlin, Heidelberg: Springer Verlag, 2009. "
Advanced Distributed Learning (ADL) Initiative In Experience API. Draft Specification., 2012.